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Patented Ja.11.20,1891.

T. E. LOGAN.

ARTESIANWELL BORER.

(No Model.)

/N VENTH ATTORNEYS ms News PETEns no., run-remake., wAsHmuTou, n. c.

UNITED STATES PATENT OFFICE.

T HOMAS H. LOGAN, OF THE UNITED STATES ARMY.

ARTESIAN-WELL BO RER.

SPECIFICATION forming part of Letters Fatent No. 444,829, dated January 20, 1891.

Application filed March l5, 1890. Serial No. 344,040%. (No model.)

To all whom it may concern:

Be it known that 1, THOMAS H. LOGAN, of the United States Army, at present stationed at Fort Hancock, in the county of El Paso and State of Texas, have invented a new and Improved Artesian-l'Vell Borer, of which the following is a full, clear, and exact descrip tion.

This invention relates to earth or rock angers of the class employed in boring Artesian wells, the object of the invention being to provide an efficient, simple, and durable auger or borer, and one which will be act-uated by the weight of the connecting-rods and sink wells in rock, gravel, earth, or sand without the use of water.

To the ends above named the invention consists of certain novel constructions, arrangements, and combinations of elements which will be hereinafter fully described, and specifically pointed out in the claims.

Reference is to be had to the accompanying drawings, forming apart of this specification, in which similar figures and letters of reference indicate corresponding parts in all the vlews.

Figure 1 is a side View in partial section of my improvedArtesian-well borer, parts being broken away. Fig. 2 is a central vert-ical sectional View taken from the direction of the arrow a, shown in connection with Fig. 1. Fig. 3 is a detail view upon an enlarged scale of the cap of the main tube. Fig. et is a sectional view on line 4 4 of Fig. 5. Fig. 5 is an enlarged vertical sectional view of the upper portion of the main tube and its connections. Fig. G is a cross-sectional View on line 6 6 of Fig. 7 Fig. 7 is an enlarged sectional detail view of the lower portion of the main tube and its connections. Fig. 8 is a plan view of the tool employed in boring rock, and Fig. 9 is a side elevation thereof.

In the drawings, 10 represents the main tube of the borer, which tube is by preference made in sections b and c, that are united by an internal sleeve 11. Nithin the tube 10 I arrange a tube 12, that is held in the section c by the sleeve 11 and by a collar 14, held in place just within the lower end of the tube 10. This inner tube 12 has a number of inwardly-extending projections 15, that fit within the spiral grooves d, formed in a pro jection 16, that extends down from the rodcoupling shank 17, said shank proper being squared or irregularly formed to receive awedge-shaped collar or sleeve 18, the upper end of the shank being threaded to engage the stock of acoupling-eye 19. To the upper end ot' the tube 1.01 secure acap 20. Within the top of this cap 20 there is arranged an apertured partition 21, which carries plates 22, said plates being centrally apertured and formed with slots e, through which there eX- tend studs or pins f, that are carried by the partition 21. The plates 22 each carryapivotally-n1ounted dog 23, having serrated edges g, said dogs being arranged so that t-heyrnay be extended outward through slots 71., that are formed in the cap-walls. This construction is provided so that when the shank 17 is lowered tothe position in which it is shown in Figs. 1 and 2 the wedge-shaped collar 18 will bear upon the plates 22 and the dogs will be moved outward to a position such that their edges g will bear against the well-casing and hold the tube 10 against any rotary motion.

A portion of one side of the lower end of the tube 12 is cut away to provide for the mounting of a hooked pawl 25, which said pawl engages a ratchet 26, formed at the upper end of the stock 27, the stock being held against any upward motion by a diaphragm or partition 28, arranged within the tuhe 12, and against any downward motion by an internal collar29, that is carried bythe tube 12.

To steady and guide the stock I provide the collar 14 with a bearing-collar 30, which abuts closely against the peripheral face of the stock, al1 undue play being prevented by a collar 31, that is carried by the stock, the collar being held to place upon the stock by a set-screw 32, which screw may be turned inward so that it will bear against the shank 33 of an auger 3a.

In order that the earth or cuttings gathered by the auger 34 may be housed and raised from the bore made by the auger, I provide a casing 40, that fits about the tube 10, the upper end of the casing being formed with an inwardly-extending flange 41, that overlaps an annular shoulder 42, formed at the lower end of the said tube 10, all upward movement of the casing at times when the instrument is IOO being lowered to working position being` prevented by springs 43, that are arranged to bear upon the upper face of the flange 41.

From the construction above described it will be seen that if the instrument be lowered to working position the wedge-shaped sleeve 1S will act to force the dogs 23 outward, so that they will bear against the well-casing and act to hold the tube 10 and the parts rigidly connected thereto against all rotary movement. Then if the coupling-rods be raised the shank 17, and with it the extension 1G,

will be carried upward and the pawl 25 will slip on its ratchet 26, at'ter which it the support of the coupling-rods be released their weight will act to return the shank 17 to the position in which it is shown in Fig. 2, and in so returning the tube 12 will be revolved, andin revolving will carry the stock forward, the stock-ratchet at this time being engaged by the pawl 25, so that a forward movement will be imparted to the auger.

It will be noticed that the auger-bits 4G extend outward slightly beyond the peripheral edge 0f the casing L10, so that as the auger operates a hole of sufficient diameter to per mit of the downward passage of such casing will be formed.

After sufiicient earth or cuttings to iili the casing has been gathered the implement is drawn to the surface and the contents of the casing discharged.

In boring rock the tool shown in Figs. S and 9 is employed. Said tool consists of a suitable head 50, provided with a shank 51, for connection with the stock 27. The head 50 is provided with a number of downwardlyprojecting cutters 52 523, said cutters in the present instance being six in number, arranged as shown, three on each side of the center of the head. At or near the periphery of the head 50 another set of cutters 54 is pivotally secured to hang vertically when the head is raised. The said cutters 54 are pret'- erably two in number, arranged diametrically opposite each other. All the cutters 52 53 54 have suitable angular cuttingpoints.

In operation, when the head is lowered into operative position the weight of the nachine and the impact of the blow causes the six cutters 52 53 to penetrate the rock and the two pivoted cutters to project beyond the head to the wall of the boring. The head makes two complete revolutions and cuts the side and bottom of the hole, thereby when working below a well-casing cutting a hole a trie larger than the outer diameter of said casing.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In an. earth or rock auger, the combination, with a tube and a shank reciprocating in said tube and adapted to operate the auger, of dogs adapted to be projected through the tube by the reciprocation of the shank to engage the well-casing and hold the saidtube fromI rotary movement, substantially as described.

2. In an earth or rock auger, the combination, with a tube and a reciprocating shank provided with a wedge-shaped collar and adapted to operate the auger, of horizont-al plates held to slide in the tube and engaged by said collar, and dogs carried by said plates, substantially as herein shown and described.

3. In an earth or rock auger, the combination, with an outer tube and means for preventing it from rotating, of an inner tube provided with inwardly-extending projections at its upper end, a tool-stock in the lower end of the inner tube, a reciprocating shank having a spiral extension, with which the projections of the tube engage and by which the said tube is rotated,and means for imparting the rotary movement of the tube to the toolstock, substantially as and for the purpose set forth.

4. In an earth or rock auger, t-he combination, with the outer tube 10, the reciprocating shank 17, provided with the spiral extension 16, and means for preventing the tube from turning, of the vinner tube 12, provided with the inwardly-extending projections 15 at its upper end and with the pawl 25 at its' lower end, and the tool-stock 27, mounted to turn in the lower end of the tube 12 and provided with the ratchet 26, with which the pawl 25 engages, substantially as herein shown and described.

5. In an earth or rock Aauger or borer, the combination, with an inclosing tube, of a cap carried thereby and formed With slots in its peripheral face, and a partition 21,plates 22, held to slide upon the partition, dogs 23, pivotally connected to the plates 22 and formed with serrated edges, a rod-coupling shank formed With a spirally-grooved projection, a wedge-shaped sleeve 1S, through which the shank passes, such sleeve being arranged toA IOO IIO 

